12407457 has 8 divisors (see below), whose sum is σ = 16582720. Its totient is φ = 8251920.

The previous prime is 12407453. The next prime is 12407477. The reversal of 12407457 is 75470421.

12407457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12407457 - 2² = 12407453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12407453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394 + ... + 6027.

It is an arithmetic number, because the mean of its divisors is an integer number (2072840).

Almost surely, 2^12407457 is an apocalyptic number.

It is an amenable number.

12407457 is a deficient number, since it is larger than the sum of its proper divisors (4175263).

12407457 is an equidigital number, since it uses as much as digits as its factorization.

12407457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 12407457 is about 3522.4220360428. The cubic root of 12407457 is about 231.5052937103.

Adding to 12407457 its reverse (75470421), we get a palindrome (87877878).

The spelling of 12407457 in words is "twelve million, four hundred seven thousand, four hundred fifty-seven".